Bundyweld was lightweight tubing that came out of the automobile industry and was a radiant-heating alternative to wrought iron and steel pipe in the days following World War II when those metals were still scarce. This is an ad for Bundyweld Ceiling Radiant Heating from 1933.
The Improved Webster Type "R" System of Steam Heating is a service bulletin from Warren Webster and Company (The Pioneers of Vacuum Steam Heating), established in 1888.
This manual was created by O-E Specialty Manufacturing Co. and outlines how to install the "O-E" Perfect System, which is a Vapor Vacuum heating system.
Here is the original Installation and Operating Instructions and Parts List for The H.B. Smith Company's Oil Fired Cast Iron Hot Water Boilers (No. OHB-13W). This is esti...